Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
thien hach » thien thanh, hien hanh
thanh tran » thanh trang, thanh toan, thanh tra
hoc thien » hoc hien, hoc thieu, hoc thiet
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
anh tang » anh bang, anh dang, anh nang
cua dung » cua dang, cua dong, qua dung
tran cao » toan cao, tran chau, trang cho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - ((anh tang) or (((hanh mang) or (canh tranh)))) cua dung cong thanh tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - ((anh tang) OR (((hanh mang) OR (canh tranh)))) cua dung cong thanh tran cao.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - ((anh tang) or (((hanh mang) or (canh tranh)))) cua dung cong thanh tran cao*.